package com.itheima.stock.service;

import com.itheima.stock.pojo.StockBusiness;

import java.util.List;

/**
 * 主营业务业务层接口
 */
public interface StockBusinessService {

    /**
     * 查询所有主营业务
     * @return
     */
    List<StockBusiness> businessAll();
}
